In [1]} the GPDs \(H\)  and \(E\)  for valence quarks have been extracted from the data
on the magnetic and electric form factors of the nucleon exploiting the sum rules for the form factors
with the help of a parameterization of the zero skewness GPDs
\(K_i^a\,=\,k_i^a(x) \exp {[tf_i^a(x)]}\,.\) 
